Lancer Systems Shotgun Extension TUBE Mossberg 590 PLUS 6!

FEATURES
-Adds 6 rounds to capacity
-Length: 14.5"
-Designed to attach to existing shotgun magazine tubes to provide added capacity to the shotgun
-Machined aluminum components combined with a lightweight carbon-fiber tube
-Creates a lightweight, durable extension to your shotgun
-An extra-long spring is included that can be cut to optimize loading
-Extension clamps are recommended for extension tubes that extend beyond the end of the barrel